
Product Description:
Direct acting self operated pressure (differential pressure) regulating valve, composed of valve body, valve seat, valve core components and other parts, is an energy-saving product that does not require external energy and relies solely on the pressure changes of the regulated medium to automatically regulate pressure. It can be used as a pressure control device for non corrosive (maximum temperature 350 ℃) liquids, gases, steam and other media. Widely applicable to industrial sectors such as petroleum, chemical, metallurgical, and light industry, as well as urban heating and heating systems.
Specification and model:
|
category |
Pressure control regulating valve |
Differential pressure control regulating valve |
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Rear pressure regulating valve |
Pre valve pressure regulating valve |
Differential pressure rising valve closed |
Differential pressure rising valve open |
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|
hard seal |
soft seal |
hard seal |
soft seal |
hard seal |
soft seal |
hard seal |
soft seal |
|
|
model |
V230D01 |
V230D01 |
V230D02 |
V231D02 |
V230D03 |
V231D03 |
V230D04 |
V231D04 |
|
specifications |
DN15-250 |
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Technical parameters:
| Nominal diameter mm |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
|
|
Rated flow coefficient Kvs |
3.2 |
5 |
8 |
12.5 |
20 |
32 |
50 |
80 |
125 |
160 |
320 |
450 |
630 |
|
| Nominal pressure MPa |
1.6; four |
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|
z value |
0.6 |
0.6 |
0.6 |
0.55 |
0.55 |
0.5 |
0.5 |
0.45 |
0.4 |
0.35 |
0.3 |
0.2 |
0.2 |
|
|
Maximum working temperature ℃ |
V230V231 |
Liquid ≤ 140; Gas ≤ 80 |
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| Hard seal V230 |
Isolation tank ≤ 200 |
Equipped with isolation tank and extension parts ≤ 300* |
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|
Equipped with isolation tank and heat sink ≤ 200 |
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Pressure balancing component |
corrugated tube |
Rolling diaphragm |
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Flange standard |
DIA (flange standards can also be provided according to user requirements) |
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|
body material |
PN16: Cast iron (working temperature ≤ 200 ℃); |
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Valve core material |
stainless steel; The soft seal is made of stainless steel embedded with rubber rings |
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Maximum working pressure MPa |
Nominal pressure (note the relationship between △ Pmax and working pressure and working temperature) |
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Note: When the liquid temperature is greater than 140 ℃ and the gas temperature is greater than 80 ℃, the valve is inverted;
2. Z-value: Noise measurement coefficient, which is used to measure the magnitude of noise. For specific calculations, please refer to the self regulating valve selection guide.
External dimensions
|
Nominal diameter mm |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
|
Lmm |
150 |
160 |
180 |
200 |
230 |
290 |
310 |
350 |
400 |
480 |
600 |
730 |
|
Bmm |
212 |
238 |
238 |
240 |
240 |
275 |
275 |
380 |
380 |
295 |
325 |
372 |
|
Approximately weight kg |
6.7 |
9.7 |
13 |
14 |
17 |
29 |
33 |
60 |
70 |
80 |
140 |
220 |
◆ D02 (D04) actuator size and weight
|
Effective area cm2 |
32 |
80 |
250 |
630 |
|
Dmm |
172 |
172 |
263 |
380 |
|
Hmm |
435 |
430 |
470 |
520 |
|
Approximately weight kg |
7.5 |
7.5 |
13 |
28 |
|
Effective area cm2 |
32 |
80 |
250 |
630 |
|
Dmm |
172 |
172 |
263 |
380 |
|
Hmm |
440 |
435 |
440 |
520 |
|
Approximately weight kg |
7.5 |
7.5 |
13 |
28 |
Note: The total height and weight of a direct acting self operated valve are the sum of the height and weight of the control valve and actuator.
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